Vulnerability Description
Nhost is an open source Firebase alternative with GraphQL. Prior to 0.48.0, the auth service's OAuth provider callback flow places the refresh token directly into the redirect URL as a query parameter. Refresh tokens in URLs are logged in browser history, server access logs, HTTP Referer headers, and proxy/CDN logs. Note that the refresh token is one-time use and all of these leak vectors are on owned infrastructure or services integrated by the application developer. This vulnerability is fixed in 0.48.0.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nhost | Nhost\/Auth | < 0.48.0 |
Related Weaknesses (CWE)
References
- https://github.com/nhost/nhost/security/advisories/GHSA-g2qj-prgh-4g9rExploitMitigationVendor Advisory
- https://github.com/nhost/nhost/security/advisories/GHSA-g2qj-prgh-4g9rExploitMitigationVendor Advisory
FAQ
What is CVE-2026-34969?
CVE-2026-34969 is a vulnerability with a CVSS score of 7.5 (HIGH). Nhost is an open source Firebase alternative with GraphQL. Prior to 0.48.0, the auth service's OAuth provider callback flow places the refresh token directly into the redirect URL as a query parameter...
How severe is CVE-2026-34969?
CVE-2026-34969 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-34969?
Check the references section above for vendor advisories and patch information. Affected products include: Nhost Nhost\/Auth.